Fix jslint.
diff --git a/source/_assets/js/matomo.js b/source/_assets/js/matomo.js
deleted file mode 100644
index f4abea6..0000000
--- a/source/_assets/js/matomo.js
+++ /dev/null
@@ -1,17 +0,0 @@
-<script>
-  var _paq = window._paq = window._paq || [];
-  /* tracker methods like "setCustomDimension" should be called before
-"trackPageView" */
-  /* We explicitly disable cookie tracking to avoid privacy issues */
-  _paq.push(['disableCookies']);
-  _paq.push(['trackPageView']);
-  _paq.push(['enableLinkTracking']);
-  (function() {
-    var u="https://analytics.apache.org/";
-    _paq.push(['setTrackerUrl', u+'matomo.php']);
-    _paq.push(['setSiteId', '7']);
-    var d=document, g=d.createElement('script'),
-s=d.getElementsByTagName('script')[0];
-    g.async=true; g.src=u+'matomo.js'; s.parentNode.insertBefore(g,s);
-  })();
-</script>
diff --git a/source/_assets/js/mode-switcher.js b/source/_assets/js/mode-switcher.js
index 2d1b4e2..345746e 100644
--- a/source/_assets/js/mode-switcher.js
+++ b/source/_assets/js/mode-switcher.js
@@ -1,11 +1,11 @@
-let systemInitiatedDark = window.matchMedia("(prefers-color-scheme: dark)");
+let systemInitiatedDark = window.matchMedia('(prefers-color-scheme: dark)');
 let theme = sessionStorage.getItem('theme');
 
 if (systemInitiatedDark.matches) {
   document.getElementById('theme-switch').checked = true;
 } else {
   document.getElementById('theme-switch').checked = false;
-  document.getElementById("theme-toggle").innerHTML = "Dark Mode";
+  document.getElementById('theme-toggle').innerHTML = 'Dark Mode';
 }
 
 function prefersColorTest(systemInitiatedDark) {
@@ -24,11 +24,11 @@
 
 function modeSwitcher() {
   let theme = sessionStorage.getItem('theme');
-  if (theme === "dark") {
+  if (theme === 'dark') {
     document.documentElement.setAttribute('data-theme', 'light');
     sessionStorage.setItem('theme', 'light');
     document.getElementById('theme-switch').checked = false;
-  } else if (theme === "light") {
+  } else if (theme === 'light') {
     document.documentElement.setAttribute('data-theme', 'dark');
     sessionStorage.setItem('theme', 'dark');
     document.getElementById('theme-switch').checked = true;
@@ -43,11 +43,11 @@
   }
 }
 
-if (theme === "dark") {
+if (theme === 'dark') {
   document.documentElement.setAttribute('data-theme', 'dark');
   sessionStorage.setItem('theme', 'dark');
   document.getElementById('theme-switch').checked = true;
-} else if (theme === "light") {
+} else if (theme === 'light') {
   document.documentElement.setAttribute('data-theme', 'light');
   sessionStorage.setItem('theme', 'light');
   document.getElementById('theme-switch').checked = false;